Patella clamp



FIG. 1 is a perspective view of a patella clamp in an environment showing our new design;

FIG. 2 is a front end elevation view thereof;

FIG. 3 is a rear end elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is another perspective view thereof.

The broken lines shown in FIG. 9 illustrate the environment in which the claimed design is used. The broken lines immediately adjacent the shaded areas represent unclaimed boundaries. None of the broken lines form part of the claimed design. 

The ornamental design for a patella clamp, as shown and described. 